oil pump bypass leakage
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oil pump bypass leakage
Leave my 2t Stella for a week or so and first start appears to be excessive smoke for quite a while. Start next day and back to normal. Is this a common problem due to a leaking bypass ball valve or something?
- Mr.FixIt
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- Mr.FixIt
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The ball check is under the Automatic Oiler pump cover. Ball goes in first. Then the spring, then a little plastic holder. I wish I took better photos to share with you.
Robot did a nice video on carb overhaul. That should give you a good idea of what you are getting into.
https://www.youtube.com/watch?v=dUDDlGUd1jg
Resist the urge to over-torque the carb base to the engine. There are only two fasteners and it will warp the casting and then not seal at all. An air leak is much worse than an oil leak.
Robot did a nice video on carb overhaul. That should give you a good idea of what you are getting into.
https://www.youtube.com/watch?v=dUDDlGUd1jg
Resist the urge to over-torque the carb base to the engine. There are only two fasteners and it will warp the casting and then not seal at all. An air leak is much worse than an oil leak.
Eric
(aka Mr. Fix It)
(aka Mr. Fix It)
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- Posts: 75
- Joined: Sun Nov 26, 2017 9:31 am
- Location: U.K.
Well thanks all for info I now have check valve and bits filled the oil tank today whilst putting on the fly screen I got. I am going to leave it a few days and use my other scooter and see if the level drops and crack on with the repair.
One thing I did notice with the cap it has a slit in and where it pushes into the tank there is a little pin about an inch down that sticks out. Not sure if this common on all but it catch's little bits of plastic no matter how careful you are lining up the slot so I presume this over time could make its way through and catch in the valve. Just a thought but if I have to remove valve I will pay close attention and report back
One thing I did notice with the cap it has a slit in and where it pushes into the tank there is a little pin about an inch down that sticks out. Not sure if this common on all but it catch's little bits of plastic no matter how careful you are lining up the slot so I presume this over time could make its way through and catch in the valve. Just a thought but if I have to remove valve I will pay close attention and report back